CN106256599B - It rests the head on and has the seat of headrest - Google Patents

It rests the head on and has the seat of headrest Download PDF

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Publication number
CN106256599B
CN106256599B CN201610438555.3A CN201610438555A CN106256599B CN 106256599 B CN106256599 B CN 106256599B CN 201610438555 A CN201610438555 A CN 201610438555A CN 106256599 B CN106256599 B CN 106256599B
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China
Prior art keywords
back side
headrest
pair
component
opening portion
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CN201610438555.3A
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Chinese (zh)
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CN106256599A (en
Inventor
小林诚治
那须宽之
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Tokai Chemical Industries Ltd
Toyota Boshoku Corp
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Tokai Chemical Industries Ltd
Toyota Boshoku Corp
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Publication of CN106256599A publication Critical patent/CN106256599A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/80Head-rests
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/80Head-rests
    • B60N2002/899Head-rests characterised by structural or mechanical details not otherwise provided for

Abstract

It is not easy the headrest of confined dynamic damper problem of the present invention is that providing a kind of displacement for having counterweight and has the seat of headrest.Headrest (92) includes strut (2), headrest body (3) and the dynamic damper (4) for being installed on strut (2).Dynamic damper (4) includes: installation component (6), has the mounting portion (60) for being installed on strut (2) and bottomless opening portion (61);Elastic component (7) is configured at opening portion (61) by the fixed complete cycle of the peristoma (610) of opening portion (61);And counterweight (80), it is embedded in elastic component (7) and is configured at opening portion (61).Installation component (6) has table side dividing body (6F) and back side dividing body (6R).By being clamped using table side dividing body (6F) and back side dividing body (6R) elastic component (7), the complete cycle of elastic component (7) is fixed by peristoma (610).

Description

It rests the head on and has the seat of headrest
Technical field
The present invention relates to the headrests for having dynamic damper and the seat for having the headrest.
Background technique
Vibration from road, engine etc. is easy to be transferred to for motor vehicle seat.In order to inhibit to vibrate, in patent document The dynamic damper of vibration damping is configured in headrest disclosed in 1.Dynamic damper include resin inserts, urethane pad and Counterweight.The spring system of urethane pad composition dynamic damper.With the quality system for being reconstructed into dynamic damper.Counterweight is embedded in Urethane pad.The recess portion with the end of the rear openings of oriented vehicle is formed on resin inserts.Counterweight is configured at the recess portion.
Patent document 1: Japanese Unexamined Patent Publication 2014-234104 bulletin
Summary of the invention
Problems to be solved by the invention
However, from the point of view of Self-counterweight, being configured with the bottom of recess portion in front side in the case where the headrest of patent document 1.Cause This, counterweight is difficult to be displaced to front side.I.e. it is easy to limit the displacement on the front-rear direction of counterweight.Therefore, the purpose of the present invention exists In providing the displacement for having counterweight and be not easy the manufacturing method of the headrest of confined dynamic damper, seat and headrest.
The solution to the problem
(1) in order to solve described problem, the present invention provides a kind of for motor vehicle headrest comprising: strut;Headrest body, It is supported on the strut;And dynamic damper, it is installed on the strut and is embedded in the headrest body, which uses Headrest be characterized in that the dynamic damper includes: installation component, have and be installed on mounting portion and the edge of the strut Table carries on the back the opening portion of direction perforation installation component itself;Elastic component is configured by the fixed complete cycle of the peristoma of the opening portion In the opening portion;And counterweight, it is embedded in the elastic component and is configured at the opening portion, the installation component has The back side dividing body of table side dividing body and the back side for being configured at the table side dividing body, by utilizing the table side dividing body and institute It states back side dividing body and clamps the elastic component from table back direction two sides, the complete cycle of the elastic component is consolidated by the peristoma It is fixed.Here, " table back direction " refers in other words the table back direction of installation component is table side dividing body and the arrangement of back side dividing body Direction.With the quality system for being reconstructed into dynamic damper.The spring system of elastic component composition dynamic damper.
Using headrest of the invention, elasticity is clamped by carrying on the back direction two sides from table using table side dividing body and back side dividing body Elastic component can be fixed on peristoma by component.Thus, it is easy to make dynamic damper.In addition, being easy to relative to elastic component Position counterweight.In addition, the complete cycle of elastic component is fixed by peristoma.Therefore, counterweight when can limit seat suspension it is excessive Displacement.
In addition, opening portion penetrates through installation component itself along table back direction.That is, the table back direction two sides of opening portion are not pacified Component is filled to block.Therefore, compared with the case where opening portion member for mount blocks, on the table back direction of counterweight when seat suspension Displacement be not easy to be limited.In addition, peristoma fixes elastic component from the direction intersected with table back direction.Therefore, it is easy to make Counterweight is carried on the back orientation preferentially along table as fulcrum using peristoma and is displaced.
(2) in the structure of (1), it is preferable that table back direction is front-rear direction or the left and right of the vehicle Direction.If keeping the table back direction of installation component consistent with the front-rear direction of vehicle, in seat suspension, it can preferentially inhibit seat Vibration on the front-rear direction of chair.If keeping the table back direction of installation component consistent with the left and right directions of vehicle, in seat suspension When, it can preferentially inhibit the vibration on the left and right directions of seat.
(3) in the structure of (1) or (2), it is preferable that the elastic component has table side elastomer and is configured at The back side elastomer of the back side of the table side elastomer, by utilizing the table side elastomer and the back side elastomer described in The counterweight is clamped in table back direction two sides, and the counterweight is clipped between the table side elastomer and the back side elastomer Interface marks off gap along the interface between the counterweight, the table side elastomer, the back side elastomer.
Using this structure, configuration gap can be adjacent to counterweight.Thus, it is easy to carry out counterweight preferentially along gap direction Displacement.For example, in the front-rear direction that this structure is merged to the table back direction and vehicle that make installation component with the structure group of (2) Under unanimous circumstances, gap can be configured in the left and right directions two sides of counterweight.Therefore, counterweight is made to be not only easy to position along the longitudinal direction It moves, and is also easy to be displaced in left-right direction.
In addition, for example, this structure to be merged to the table back direction and vehicle for making installation component with the structure group of (2) Under left and right directions unanimous circumstances, gap can be configured in the front-rear direction two sides of counterweight.Therefore, it is not only easy to counterweight along a left side Right direction displacement, and be also easy to be displaced along the longitudinal direction.
(4) in the structure of (3), it is preferable that by utilizing the table side dividing body and the back side dividing body Clamped from table back direction two sides and be embedded with the elastic component and the strut of the counterweight, the elastic component it is whole Week is fixed by the peristoma and the mounting portion is installed in the strut.
Using this structure, the fixed operation of elastic component and the installation exercise of mounting portion can be carried out simultaneously.Thus, it is easy to Make dynamic damper.In addition, being easy to install dynamic damper to strut.
(5) in the structure of (4), it is preferable that the strut have a pair of of leg for vertically extending and The linking part that will be linked up between the upper end of a pair of leg, the installation component are clipped between a pair of leg, A pair of of slit portion to lower opening is marked off between a pair of leg and the installation component.It, can using this structure Make the leg of a pair of of leg is long to extend amount corresponding with a pair of of slit portion.
(5-1) hereinafter, explanation described in (5) structure headrest manufacturing method.In addition, the headrest master of the headrest Body has the bag-shaped epidermis for offering a pair of of leg hole and component holes.Also, the installation component, which has, is configured at a pair of of institute State the slit non-corresponding portion that the slit between slit portion corresponds to portion and is not configured between a pair of slit portion.
The manufacturing method of the headrest is characterized in that, using the direction gone from upside towards the downside as the first insertion side To using the direction opposite with first direction of insertion as the second direction of insertion, the manufacturing method of the headrest includes following work Sequence: fit process, in the zoarium process, by utilizing the table side dividing body and the back side dividing body from the table back side The elastic component and the strut for being embedded with the counterweight are clamped to two sides, to utilize the fixed elasticity of the peristoma The mounting portion is simultaneously installed on the strut by the complete cycle of component, is thus made fit by the dynamic damper and the strut Made of bumper assembly;First insertion process, this first insertion process in, by the installation component indwelling in the table In the state of the outside of skin, a pair of leg is inserted into the table via the component holes along first direction of insertion In skin and keep a pair of leg prominent from the epidermis via a pair of leg hole;And the second insertion process, this In two insertion processes, the part near the peristoma of the component holes of the epidermis is covered in slit non-corresponding portion On, the slit is corresponded into portion and is inserted into the epidermis along second direction of insertion via the component holes.
Here, " the first direction of insertion " refers to the side gone from upside towards downside in the state of backrest standing To.If will rest the head on be installed on backrest before in the state of, other directions are (for example, the side gone from front side towards rear side To, with the contrary direction gone from front side towards rear side, the direction gone from front side towards rear side, with from front side towards rear side The contrary direction gone) it is sometimes also corresponding with " the first direction of insertion ".
The fixed operation of elastic component can be carried out in loading fit process using the manufacturing method of the headrest simultaneously With the installation exercise of mounting portion.That is, the production job of dynamic damper can be carried out simultaneously and install dynamic damper to strut Installation exercise.
In addition, after a pair of of leg is inserted into the inside of epidermis via component holes, making this in the first insertion process A pair of of leg is projected into the outside of epidermis via a pair of of leg hole.After the first insertion process, epidermis is located at component holes and one Slit portion is trapped in respectively between the part (part a pair of holes) between leg hole.Therefore, slit non-corresponding portion can be made to become smaller. Therefore, in the second insertion process, it is easy to cover the part near the peristoma of component holes of epidermis in slit non-corresponding portion On.
(6) in the structure of (1) to any one of (5), it is preferable that the headrest also has for limiting described match The limiting unit of displacement on the table back direction of weight.Using this structure, counterweight when can limit seat suspension it is excessive Displacement.
(7) in the structure of (6), it is preferable that the limiting unit is a pair of of coupling member, a pair of coupling member It is configured at the installation component and the table for being configured at the opening portion in a manner of across the opening portion carries on the back direction two sides. It is long by adjusting the leg of coupling member using this structure, it can simply adjust the limited length of the displacement of counterweight.
(8) in the structure of (6), it is preferable that the limiting unit is a pair of of film structural component, and a pair of film structural component is from institute It states table back direction two sides and covers the elastic component.It can simply be adjusted using this structure by adjusting the slack of film structural component The limited length of the displacement of whole counterweight.
(9) in the structure of (6), it is preferable that the headrest body has the buffer component of resin expanded system, The limiting unit is a pair of of Infiltration layer, which is by the way that the raw material of the buffer component is infiltrated in the elastic structure The surface and the back side of part and formed.Using this structure, a pair of of infiltration can be configured while the foaming and molding of buffer component Layer is limiting unit.
(10) in order to solve described problem, the present invention provides a kind of seat, which is characterized in that the seat has (1) To the headrest of any one of (9).It is easy to make dynamic damper as recorded in (1) using seat of the invention. In addition, being easy to position counterweight relative to elastic component.In addition, the excessive displacement of counterweight when can limit seat suspension.
In addition, the non-member for mount in table back direction two sides of the opening portion of installation component blocks.Therefore, when seat suspension The displacement of counterweight be not easy to be limited.In addition, peristoma fixes elastic component from the direction intersected with table back direction.Therefore, easily It is displaced in making counterweight carry on the back orientation preferentially along table with peristoma fulcrum.
The effect of invention
The headrest of confined dynamic damper is not easy according to the present invention, it is possible to provide the displacement for having counterweight and has head The seat of pillow.
Detailed description of the invention
Fig. 1 is the perspective view of the seat of first embodiment.
Fig. 2 is the perspective view of the bumper assembly of the headrest of the embodiment.
Fig. 3 is the exploded perspective view of the bumper assembly.
Fig. 4 is the enlarged drawing of the strut of Fig. 3, counterweight, back side elastomer, back side dividing body.
Fig. 5 is the front view of the bumper assembly.
Fig. 6 is the VI-VI cross-sectional view of Fig. 5.
Fig. 7 is the VII-VII cross-sectional view of Fig. 5.
Fig. 8 is the VIII-VIII cross-sectional view of Fig. 5.
(a) of Fig. 9 is the schematic diagram of the first insertion process of the manufacturing method of the headrest.(b) of Fig. 9 is the manufacturing method Second insertion process schematic diagram (one).(c) of Fig. 9 is schematic diagram (its of the second insertion process of the manufacturing method Two).(d) of Fig. 9 be the manufacturing method second insertion process schematic diagram (thirdly).
Figure 10 indicates the schematic diagram for the second insertion process for not setting the manufacturing method of the headrest of slit portion.
Figure 11 is the perspective view of the bumper assembly of the headrest of second embodiment.
Figure 12 is the front-rear direction cross-sectional view of the bumper assembly of the headrest of third embodiment.
Figure 13 is the front-rear direction cross-sectional view of the bumper assembly of the headrest of the 4th embodiment.
Description of symbols
2, strut;20, leg;21, linking part;3, headrest body;30, epidermis;300, leg hole;301, component holes;31, Buffer component;4, dynamic damper;6, installation component;60, mounting portion;61, opening portion;600, installation sheet;600a, installation are recessed Portion;610, peristoma;620, claw;620a, barb;621, directed section;630, it is engaged opening portion;6F, table side dividing body; 6R, back side dividing body;60F, table side mounting portion;60R, back side mounting portion;61F, table side opening portion;61R, back side opening portion; 610F, table side peristoma;610R, back side peristoma;62F, table side holding section;62R, back side holding section;63F, table side engaged part; 63R, back side engaged part;7, elastic component;70, Infiltration layer;7F, table side elastomer;7R, back side elastomer;80, counterweight;81, Coupling member;82, film structural component;9, seat;90, backrest;91, seat cushion;92, it rests the head on;900, strut mounting hole;A, damper Component;A1, slit correspond to portion;A2, slit non-corresponding portion;B1, gap;C1, slit portion;Part between D1, hole;L1, leg are long;Y1~ Y3, arrow;F, interface.
Specific embodiment
Hereinafter, illustrating the embodiment of the manufacturing method of headrest of the invention, seat and headrest.
First embodiment
The structure of seat
Firstly, illustrating the structure of the seat of present embodiment.In the figure shown in later, front-rear direction and of the invention " table back direction " is corresponding, and front side is corresponding with " table side " of the invention, and rear side is corresponding with " back side " of the invention.Right and left To be by from the rear side of vehicle observe when on the basis of define.
Fig. 1 shows be present embodiment seat perspective view.What Fig. 2 was indicated is the damping of the headrest of present embodiment The perspective view of device assembly.What Fig. 3 was indicated is the exploded perspective view of the bumper assembly.What Fig. 4 was indicated be the strut of Fig. 3, counterweight, The enlarged drawing of back side elastomer, back side dividing body.What Fig. 5 was indicated is the front view of the bumper assembly.That Fig. 6 is indicated is Fig. 5 VI-VI cross-sectional view.What Fig. 7 was indicated is the VII-VII cross-sectional view of Fig. 5.Fig. 8 shows be Fig. 5 VIII-VIII section view Figure.In addition, showing bumper assembly A in a manner of perspective in Fig. 1.In Fig. 2, counterweight 80 is shown in a manner of perspective.? In Fig. 6~Fig. 8, the buffer component 31 of headrest body 3 is shown using dashed cutting-line.
As shown in Figure 1, seat 9 includes backrest 90, seat cushion 91 and headrest 92.Seat cushion 91 (is not schemed by frame Show) it is installed on the floor (not shown) of vehicle.The lower end of backrest 90 is installed on the rear end of seat cushion 91.Headrest 92 is installed on seat The upper end of chair back 90.When vehicle travels, it shakes from the floor of vehicle via seat cushion 91 to backrest 90 and 92 transmitting of headrest It is dynamic.
The structure of headrest
Next, illustrating the structure of the headrest of present embodiment.As shown in FIG. 1 to 3, headrest 92 includes bumper assembly A and headrest body 3.Headrest body 3 includes epidermis 30 and buffer component (not shown).Epidermis 30 is resin and takes the shape of a bag.Buffering Component is made of flexible polyurethane foaming body (molded polyurethane).Buffer component is configured at the inside of epidermis 30.
Bumper assembly A includes strut 2 and dynamic damper 4.State (the shape that backrest 90 erects shown in Fig. 1 State (for example, state for erecting backrest 90 in a manner of making headrest 92 become vertical)) under, strut 2 on the whole in The C-shaped of lower opening.Strut 2 is made of metal tube.As shown in figure 3, strut 2 includes pair of right and left leg 20 and linking part 21.Leg 20 vertically extends.The lower end of leg 20 is accommodated in the strut mounting hole 900 of backrest 90.Linking part 21 extend in left-right direction.Linking part 21 will link up between the upper end of pair of right and left leg 20.
Dynamic damper 4 includes installation component 6, elastic component 7 and counterweight 80.As shown in figure 3, elastic component 7 includes Table side elastomer 7F and back side elastomer 7R.As shown in figure 4, back side elastomer 7R is (poly- by having the polyurethane foaming body of elasticity Urethane plate) it is made and in rectangular plate-like.As shown in Figure 6 to 8, the back of the back side opening portion 61R of aftermentioned back side dividing body 6R Side port edge 610R is crimped on the rear surface (back side) of back side elastomer 7R.As shown in the thick line of Fig. 6~Fig. 8, in back side elastomer The rear surface of 7R is formed with Infiltration layer 70.
Table side elastomer 7F is configured at the front side of back side elastomer 7R.The structure and back side elastomer 7R of table side elastomer 7F Structure it is identical.As shown in Figure 6 to 8, the table side peristoma 610F crimping of the table side opening portion 61F of aftermentioned table side dividing body 6F In the front surface (surface) of table side elastomer 7F.As shown in the thick line of Fig. 6~Fig. 8, formed in the front surface of table side elastomer 7F There is Infiltration layer 70.
Counterweight 80 be made of metal and in vertically extend it is cylindric.As shown in figure 3, counterweight 80 is clipped on table side Between the rear surface of elastomer 7F and the front surface of back side elastomer 7R.That is, counterweight 80 is embedded in elastic component 7.Such as Fig. 8 institute Show, around counterweight 80, along the interface f between the rear surface of table side elastomer 7F and the front surface of back side elastomer 7R Mark off gap.Specifically, counterweight 80 left and right directions (with " table back direction " orthogonal direction of the invention and be counterweight 80 diametrical direction) two sides mark off pair of right and left gap B1.
Installation component 6 includes table side dividing body 6F and back side dividing body 6R.In addition, as shown in figure 5, installation component 6 includes Mounting portion 60 and opening portion 61.As shown in Fig. 4, Fig. 6~Fig. 8, back side dividing body 6R is formed from a resin and in rectangular box shape.Separately Outside, back side dividing body 6R is in the hypocrateriform to the shallow bottom of front openings.Back side dividing body 6R is configured at the rear side of elastic component 7. Back side dividing body 6R includes back side mounting portion 60R, back side opening portion 61R, a pair of back side holding section 62R and a pair of of back side by card Conjunction portion 63R.
Back side mounting portion 60R is configured at the front surface (inner surface) of back side dividing body 6R.As shown in figure 5, back side mounting portion 60R includes multiple installation sheets 600.Installation sheet 600 is plate-like.Multiple installation sheets 600 are with the upper end of a pair of of leg 20 with strut 2 Portion, the corresponding mode of linking part 21 configure.As shown in fig. 6, installation sheet 600 has mounting recess 600a.Mounting recess 600a Bottom surface be in the cambered surface that mold symmetrical (Japanese: type is symmetrical) is constituted with the outer peripheral surface of the upper end of a pair of of leg 20, linking part 21 Shape.
Back side opening portion 61R rectangular shaped.As shown in figure 4, back side opening portion 61R penetrates through back side segmentation along the longitudinal direction Body 6R.Side is prominent forward by the back side peristoma 610R of back side opening portion 61R.Annular in shape rectangular box-like of back side peristoma 610R.
A pair of of back side engaged part 63R is configured at the front surface of back side dividing body 6R.As shown in figure 5, a pair of of back side is by card A back side engaged part 63R in conjunction portion 63R is configured near the lower right corner of back side opening portion 61R.A pair of of back side engaged part Another back side engaged part 63R in 63R is configured near the upper left corner of back side opening portion 61R.That is, a pair of of back side engaged part 63R is configured at the diagonal positions of the back side opening portion 61R of rectangular shape.As shown in figure 4, back side engaged part 63R is cylindrical in shape. As shown in fig. 7, in outer wall (the back side engaged part near the lower right corner of back side opening portion 61R of back side engaged part 63R It is lower wall in the case where 63R, in the case where back side engaged part 63R near the upper left corner of back side opening portion 61R, for a left side Wall) offer engaged opening portion 630.
A pair of of back side holding section 62R is configured at the front surface of back side dividing body 6R.As shown in figure 5, a pair of of back side holding section A back side holding section 62R in 62R is configured near the upper right corner of back side opening portion 61R.It is another in a pair of of back side holding section 62R One back side holding section 62R is configured near the lower left corner of back side opening portion 61R.That is, a pair of back side holding section 62R is configured at rectangle The diagonal positions of the back side opening portion 61R of shape.As shown in fig. 7, back side holding section 62R includes that claw 620 and a pair are drawn Lead portion 621.Side is provided projectingly claw 620 forward.Barb 620a is formed in the front end (top) of claw 620.Barb 620a to Outside (is right side, in back side opening portion in the case where back side holding section 62R near the upper right corner of back side opening portion 61R It is downside in the case where back side holding section 62R near the lower left corner of 61R) it stretches out.A pair of of directed section 621 is configured at claw 620 inside.Directed section 621 is in come to a point from rear side (root side of claw 620) towards front side (tip side of claw 620) Triangle plate.
As shown in figure 3, the structure of table side dividing body 6F is identical with the structure of back side dividing body 6R.Table side dividing body 6F configuration For the direction after back side dividing body 6R is overturn 180 ° centered on upper-lower axis in the horizontal direction.
As shown in figure 5, mounting portion 60 is pacified by the back side of the table side mounting portion 60F and back side dividing body 6R of table side dividing body 6F Dress portion 60R is formed.Mounting portion 60 is matched in a manner of corresponding with the upper end of the pair of right and left leg 20 of strut 2, linking part 21 It sets.
As shown in figure 5, installation component 6 includes that slit corresponds to portion A1 and slit non-corresponding portion A2.Slit corresponds to portion A1 configuration In the downside of slit non-corresponding portion A2.It corresponds between portion A1 and pair of right and left leg 20 in slit configured with pair of right and left slit portion C1.Slit portion C1 is vertically extended.Slit portion C1 is to lower opening.
As shown in figure 5, opening portion 61 is opened by the back side of the table side opening portion 61F and back side dividing body 6R of table side dividing body 6F Oral area 61R is formed.Opening portion 61 penetrates through installation component 6 along the longitudinal direction.Peristoma 610 is by table side peristoma 610F and back side peristoma 610R is formed.
The manufacturing method of headrest
Next, illustrating the manufacturing method of the headrest of present embodiment.What (a) of Fig. 9 was indicated is the head of present embodiment The schematic diagram of first insertion process of the manufacturing method of pillow.What (b) of Fig. 9 was indicated is the second insertion process of the manufacturing method Schematic diagram (one).What (c) of Fig. 9 was indicated be the second insertion process of the manufacturing method schematic diagram (secondly).(d) of Fig. 9 Indicate be the manufacturing method second insertion process schematic diagram (thirdly).In addition, benefit is represented by dashed line in bumper assembly A The part for being accommodated in epidermis 30.The manufacturing method of the headrest of present embodiment has fit process, the first insertion process, second It is inserted into process and foaming and molding process.
Fit process
In fit process, dynamic damper 4 is made.Also, dynamic damper 4 is installed on strut 2.That is, production subtracts Shake device assembly A.Firstly, as shown in figure 3, by strut 2, table side elastomer 7F, counterweight 80, back side elastomer 7R configuration in table side point It cuts between body 6F and back side dividing body 6R.
Next, as shown in figure 4, table side holding section 62F is made to be sticked in back side engaged part 63R.That is, by table side holding section 62F is inserted into back side engaged part 63R.At this point, a pair of of directed section 621 is by the inner surface guidance along back side engaged part 63R. As shown in fig. 7, peristoma of the barb 620a of claw 620 engaging in engaged opening portion 630.Similarly, make back side holding section 62R It is sticked in table side engaged part 63F.In this way, keeping table side dividing body 6F and back side dividing body 6R fit using pawl is chimeric.
As shown in figure 5, being embedded with the elastic component 7 of counterweight 80 by table side peristoma 610F and back side peristoma in zoarium 610R is from front-rear direction sandwich.That is, the complete cycle of elastic component 7 is fixed by peristoma 610.
In addition, as shown in figure 5, in zoarium, strut 2 is by table side mounting portion 60F and back side mounting portion 60R from front-rear direction Sandwich.That is, as shown in fig. 6, the outer peripheral surface of strut 2 is accommodated in the mounting recess of the installation sheet 600 of table side mounting portion 60F The mounting recess 600a of the installation sheet 600 of 600a and back side mounting portion 60R.
In this way, in this process, by keeping table side dividing body 6F and back side dividing body 6R pawl chimeric, subtracting to make power Shake device 4.Meanwhile dynamic damper 4 is installed on strut 2.That is, production bumper assembly A.
First insertion process
As shown in (a) of Fig. 9, a pair of of leg hole 300 and component holes 301 are offered on epidermis 30.A pair of of leg hole 300 It arranges in left-right direction.Leg hole 300 is in round type.Component holes 301 are set side by side with a pair of of leg hole 300.Component holes 301 are in The long hole shape extended in left-right direction.The left and right directions length of slit non-corresponding portion A2 is set as α, by slit non-corresponding portion A2's Up and down direction length is set as β, and the left and right directions length of component holes 301 is set as γ, in a manner of satisfaction ((alpha+beta)/γ) < 1.3 Set each size.
In this process, as shown in the arrow Y1 (the first direction of insertion) in (a) of Fig. 9, by a pair of of leg 20 via group Part hole 301 is inserted into a pair of of leg hole 300.As shown in (b) of Fig. 9, installation component 6 is not accommodated in epidermis 30.First The part (part D1 between a pair of holes) point between component holes 301 and a pair of of leg hole 300 after being inserted into process, in epidermis 30 It is not trapped in slit portion C1.Therefore, after the first insertion process, slit non-corresponding portion A2 is projected into than a pair of of leg hole 300 Upper position.
Second insertion process
In this process, firstly, as Fig. 9 (b) in arrow Y2 shown in, lift epidermis 30 is located at component holes 301 Part (specifically, positioned at the part for the side (upside) that a pair of of leg hole 300 is not configured) near peristoma is simultaneously covered On slit non-corresponding portion A2.Next, the arrow Y3 (the second direction of insertion) in (c) of such as Fig. 9 is shown, a pair of of leg 20 is passed through Specific length is further inserted into from a pair of of leg hole 300 to epidermis 30.At this point, slit, which corresponds to portion A1, is also been inserted into epidermis 30 In.In this way, bumper assembly A to be placed in the specified position of the inside of epidermis 30.
Foaming and molding process
In this process, by the raw material of buffer component 31 (containing polyisocyanate component, polyol component etc.) via group Part hole 301 is injected into the inside of epidermis 30.It is foamed by raw material in the inside of epidermis 30, to form buffer component 31.In addition, It is infiltrated in table side elastomer 7F, back side elastomer 7R by raw material, to form Fig. 6~Infiltration layer shown in Fig. 8 70.
Function and effect
Next, illustrating the function and effect of the manufacturing method of the headrest of present embodiment, seat and headrest.Such as Fig. 3 institute Show, in fit process, by clamping elastic component from front-rear direction two sides using table side dividing body 6F and back side dividing body 6R 7, so that elastic component 7 is fixed on peristoma 610.Thus, it is easy to make dynamic damper 4.In addition, being easy to relative to elastic structure Part 7 positions counterweight 80.In addition, elastic component 7 is on complete cycle by peristoma 610 (table side peristoma 610F, back side in fit process Peristoma 610R) annularly fix.Therefore, the excessive displacement of the counterweight 80 when can limit 9 vibration damping of seat.
In addition, as shown in figure 8, opening portion 61 penetrates through installation component 6 itself along the longitudinal direction.That is, the front and back of opening portion 61 The non-member for mount 6 in direction two sides blocks.Therefore, compared with the case where 61 member for mount 6 of opening portion blocks, seat 9 subtracts Displacement on the front-rear direction of counterweight 80 when vibration is not easy to be limited.In addition, peristoma 610 is square from up and down by elastic component 7 To fixation.Therefore, it is easy to be displaced counterweight 80 preferentially along the longitudinal direction with 610 fulcrum of peristoma.
In addition, as shown in figure 3, in fit process, using table side dividing body 6F and back side dividing body 6R from front-rear direction Elastic component 7 is not only clamped in two sides, but also clamps strut 2, thus installs while elastic component 7 is fixed by peristoma 610 Portion 60 is installed in strut 2.Therefore, the production job of dynamic damper 4 can be carried out simultaneously and is installed on dynamic damper 4 The installation exercise of strut 2.
In addition, as shown in Figure 1, the table back direction of installation component 6 is consistent with the front-rear direction of vehicle.Therefore, subtract in seat 9 When vibration, it can preferentially inhibit the vibration on the front-rear direction of seat 9.
In addition, as shown in figure 8, in fit process, by using table side elastomer 7F and back side elastomer 7R from front and back Counterweight 80 is clamped in direction two sides, so that counterweight 80 is clipped on the interface f between table side elastomer 7F and back side elastomer 7R. Between counterweight 80, table side elastomer 7F, back side elastomer 7R, pair of right and left gap B1 is marked off along interface f.Therefore, Make counterweight 80 be not only easy to be displaced along the longitudinal direction, is also easy to be displaced in left-right direction.
In addition, in foaming and molding process, being injected by the raw material of the liquid of buffer component 31 as shown in Fig. 1, Fig. 8 When the inside of epidermis 30, raw material is infiltrated in the front surface of table side elastomer 7F and the rear surface of back side elastomer 7R.Therefore, can A pair of of Infiltration layer 70 is formed in former and later two faces of elastic component 7.Thus, it is possible to the mistake of the counterweight 80 when limiting 9 vibration damping of seat The displacement of amount.In addition, can configure a pair of of Infiltration layer 70 while the foaming and molding of buffer component 31 is limiting unit.
Herein it is assumed that the case where mounting portion 60 of installation component 6 extends to the lower end of installation component 6, i.e., do not set Fig. 5 institute The case where a pair of of slit portion C1 shown.What Figure 10 was indicated is the second insertion process for not setting the manufacturing method of the headrest of slit portion Schematic diagram.In addition, Figure 10 is corresponding with (b) of Fig. 9.For position corresponding with (b) of Fig. 9, with identical attached drawing mark Note is to indicate.
As shown in Figure 10, in this case, after the first insertion process, and entire installation component 6 (in (b) of Fig. 9, phase When corresponding to portion A1+ slit non-corresponding portion A2 in slit.) it is projected into the position more upper than a pair of of leg hole 300.Thus, such as arrow Shown in head Y2, in the second insertion process, need for entire installation component 6 to be accommodated in the inside of epidermis 30 via component holes 301. In particular, it is desirable to lift the part near the peristoma of component holes 301 of epidermis 30 and covered in entire installation component 6 On.However, needing the opening area in enlarged component hole 301 to cover epidermis 30 on entire installation component 6.Therefore, example Such as, countermeasures such as " slits that setting makes component holes 301 be connected with a pair of of leg hole 300 " are needed.
In contrast, as shown in figure 5, present embodiment bumper assembly A a pair of of leg 20 and installation component 6 it Between be set with a pair of of slit portion C1 to lower opening.As shown in (b) of Fig. 9, after the first insertion process, part between a pair of holes D1 is trapped in slit portion C1 respectively.It therefore, is not that entire installation component 6 is projected into than a pair of of leg after the first insertion process The upper position in portion hole 300, but only slit non-corresponding portion A2 is projected into the position more upper than a pair of of leg hole 300.
In this way, can make to be projected into after the first insertion process than a pair of of leg hole when being set with a pair of of slit portion C1 The part of 300 upper positions becomes smaller.Thus, second insertion process in, as Fig. 9 (b) in arrow Y2 shown in, only lead to It crosses the part near the peristoma of component holes 301 lifted in epidermis 30 and is covered on slit non-corresponding portion A2, energy The enough inside that slit non-corresponding portion A2 is accommodated in epidermis 30.
Also, as shown in (a) of Fig. 9, the left and right directions length of slit non-corresponding portion A2 is set as α, by slit non-corresponding The up and down direction length of portion A2 is set as β, and the left and right directions length of component holes 301 is set as γ, with satisfaction ((alpha+beta)/γ) < 1.3 Mode set each size.Therefore, it is capable of increasing opening area of the component holes 301 relative to slit non-corresponding portion A2.Thus, In the second insertion process, it can simply carry out operation shown in the arrow Y2 in (b) of Fig. 9 and (lift the position in epidermis 30 The operation on slit non-corresponding portion A2 is simultaneously covered in part near the peristoma of component holes 301).
In addition, as shown in figure 4, making table side holding section 62F be sticked in back side engaged part 63R in fit process.And And back side holding section 62R is made to be sticked in table side engaged part 63F.That is, dividing table side dividing body 6F and back side using pawl is chimeric Body 6R is fit.Therefore, pass through once-through operation, it will be able to carry out the production job of dynamic damper 4 and subtract to the installation power of strut 2 Shake the installation exercise of device 4.
In addition, as shown in fig. 7, in fit process, when table side holding section 62F is inserted into back side engaged part 63R, A pair of of directed section 621 is by the inner surface guidance along back side engaged part 63R.Therefore, it is easy to carry out table side holding section 62F and back Contraposition between the 63R of side engaged part.Similarly, a pair of when back side holding section 62R to be inserted into table side engaged part 63F Directed section 621 is by the inner surface guidance along table side engaged part 63F.Therefore, it is easy to carry out back side holding section 62R and table side quilt Contraposition between the 63F of holding section.
In addition, as shown in figure 3, the structure of table side dividing body 6F is identical with the structure of back side dividing body 6R.Therefore, same point Table side dividing body 6F can either be used as by cutting body, can also act as back side dividing body 6R.That is, dividing body sharing can be made.
In addition, the elastic component 7 of dynamic damper 4 is more soft than the buffer component of headrest body 3.Therefore, elastic component 7 is not The easily displacement of limitation counterweight 80.On the other hand, buffer component 31 is easy to limit the excessive displacement of counterweight 80.
In addition, as shown in figure 5, being set with a pair of of slit portion C1 on the bumper assembly A of present embodiment.Therefore, energy The extending direction that when enough making from right side or left sides, leg 20 extending direction and slit correspond to portion A1 is different.Thus, energy Enough desired positions that dynamic damper 4 is embedded in headrest 92.
In addition, as shown in fig. 7, elastic component 7 is by table side peristoma 610F and back side peristoma 610R from front-rear direction two sides bullet Compress to property.Therefore, nearby outside exerts a force peristoma 610 of the elastic component 7 to installation component 6 forward and backward.Thus, it is possible to make The barb 620a of table side holding section 62F is securely engaging in the peristoma of the engaged opening portion 630 of back side engaged part 63R.Together Sample, the barb 620a of back side holding section 62R can be made securely engaging in the engaged opening portion of table side engaged part 63F 630 peristoma.In addition, columned counterweight 80 is cheap.Therefore, the cost of manufacture of dynamic damper 4 can be cut down.
In addition, the rigid body that installation component 6 is made of resin.Therefore, only pass through the upper end with a pair of of leg 20, linking part 21 are configured accordingly mounting portion 60, it will be able to which dynamic damper 4 is securely mounted at strut 2.Thus, as shown in figure 5, easily In ensuring a pair of of slit portion C1.
Second embodiment
It is between present embodiment and first embodiment to link structure the difference lies in that being configured on dynamic damper Part.Here, only illustrating difference.What Figure 11 was indicated is the perspective view of the bumper assembly of the headrest of present embodiment.In addition, right In position corresponding with Fig. 2, indicated with identical appended drawing reference.
As shown in figure 11, on the table side dividing body 6F of dynamic damper 4, across table side opening portion 61F configured with company Structural member 81.Coupling member 81 is in band-like.Coupling member 81 is configured at the front side of table side opening portion 61F.Coupling member 81 is on a left side Across the up and down direction center portion of table side opening portion 61F (part Chong Die with counterweight 80 when from front side) in right direction. In addition, being also configured with identical coupling member 81 on rear side of the back side opening portion of back side dividing body 6R.
The headrest of present embodiment and the headrest of first embodiment part general in structure have identical effect Effect.A pair of of coupling member 81 is configured in the front-rear direction two sides of the opening portion of installation component 6.Therefore, seat 9 can be limited The excessive displacement of counterweight 80 when vibration damping.In addition, by adjusting coupling member 81 the long L1 of leg (specifically, in front side In the case where coupling member 81, be the main body for playing coupling member 81 from the front surface of table side dividing body 6F rear surface until Length on front-rear direction), it can simply adjust the limited length of the displacement of counterweight 80.
Third embodiment
It is between present embodiment and first embodiment the difference lies in that configured with a pair of of film structure on dynamic damper Part.Here, only illustrating difference.What Figure 12 was indicated is the front-rear direction section view of the bumper assembly of the headrest of present embodiment Figure.In addition, for position corresponding with Fig. 8, indicated with identical appended drawing reference.
As shown in figure 12, a pair of of film structural component 82 is configured in the front-rear direction two sides of elastic component 7.Film structural component 82 is by resin It is made.The film structural component 82 of front side covers the entire front surface of table side elastomer 7F.The film structural component 82 of rear side covers back side elastomer The entire rear surface of 7R.
The headrest of present embodiment and the headrest of first embodiment part general in structure have identical effect Effect.A pair of of film structural component 82 is configured in the front-rear direction two sides of elastic component 7.Therefore, matching when can limit 9 vibration damping of seat Weigh 80 excessive displacement.In addition, by adjusting the slack (gap between elastic component 7 and film structural component 82 of film structural component 82 Front-rear direction length), can simply adjust the limited length of the displacement of counterweight 80.In addition, film structural component 82 be able to suppress it is slow The raw material for rushing the liquid of component 31 is infiltrated in table side elastomer 7F, back side elastomer 7R.
4th embodiment
It is between present embodiment and first embodiment the difference lies in that table side elastomer and back side elastomer realize Integration.Here, only illustrating difference.What Figure 13 was indicated is that the front-rear direction of bumper assembly of the headrest of present embodiment cuts open View.In addition, for position corresponding with Fig. 8, indicated with identical appended drawing reference.As shown in figure 13, by will be single Elastomer folding constitutes table side elastomer 7F and back side elastomer 7R.That is, elastic component 7 be integrated made of component.
The headrest of present embodiment and the headrest of first embodiment part general in structure have identical effect Effect.Component made of elastic component 7 is integrated.Therefore, the part number of packages of dynamic damper 4 is reduced.
Other
It this concludes the description of the embodiment of the manufacturing method of headrest of the invention, seat and headrest.However, embodiment party Formula is not particularly limited to the mode.Can in a manner of the various modifications that those skilled in the art is able to carry out, change Good mode is implemented.
In said embodiment, as shown in figure 4, in fit process, by dividing table side dividing body 6F and back side Body 6R pawl is fitted into have made dynamic damper 4.However, the union method between table side dividing body 6F and back side dividing body 6R is simultaneously It is not particularly limited.It is also possible to for example, making table side dividing body 6F by the methods of fixture, screw, bonding agent, splicing tape, welding It is fit with back side dividing body 6R.
In addition, table side dividing body 6F shown in Fig. 3 and back side dividing body 6R can also be not exclusively mutually indepedent.It can also be with It is, for example, being linked up table side dividing body 6F and back side dividing body 6R using flexible hinge etc..In addition, table side point It cuts body 6F and back side dividing body 6R is not limited to the same shape, or mutually different shape.
In addition, the extending direction of counterweight 80 shown in Fig. 3 is not particularly limited.For example, extending direction is also possible to left and right Direction.In addition, the shape of counterweight 80 is not particularly limited.It is also possible to such as spherical, flat column.
In addition, the table back direction of perforation direction, that is, installation component 6 of opening portion 61 shown in fig. 5 may be right and left To.So, it is easy to be displaced counterweight 80 preferentially in left-right direction.In addition, being produced on the front-rear direction of seat 9 In the case where excessive vibration, the mounting portion 60 (peristoma 610 of opening portion 61) of installation component 6 becomes limiting unit, can limit Excessive displacement on the front-rear direction of counterweight 80.In addition, film structural component 82 shown in Figure 12 can also in advance with elastic component 7 one Body.
Installation component 6, counterweight 80, elastic component 7, coupling member 81, film structural component 82 material be not particularly limited.It can also To be, for example, installation component 6, coupling member 81 are made of resin or metal, film structural component 82 is formed from a resin, and counterweight 80 is by gold Belong to or resin is made, elastic component 7 is made of foamed resin.The structure of mounting portion 60 is not particularly limited.It is also possible to replace For multiple installation sheets 600, configuration is linked to be C word in a manner of corresponding with the upper end of a pair of of leg 20 of strut 2, linking part 21 The recess portion of shape.
A pair of coupling member 81 shown in Figure 11 can not also be band-like.It is also possible to for example, by the company of front side (table side) Structural member 81 is formed as the cover shape heaved to front side (table side).Also, the coupling member 81 that also can use front side is complete from front side Face covers table side opening portion 61F.It is equally possible that being formed as the coupling member 81 of rear side (back side) to rear side (back side) drum The cover shape risen.Also, the coupling member 81 that also can use rear side covers back side opening portion 61R from back side comprehensively.So, It, can be in front and back between opening portion (table side opening portion 61F, back side opening portion 61R) and the coupling member 81 of a pair of of cover shape Ensure defined gap upwards.Thus, it is easy to be displaced counterweight 80 along the longitudinal direction.On the other hand, in the excessive status of counterweight 80 In the case where shifting, the displacement of counterweight 80 can be limited using the coupling member 81 of a pair of of cover shape.

Claims (9)

1. a kind of for motor vehicle headrest (92) comprising: strut (2);Headrest body (3) is supported on the strut (2);With And dynamic damper (4), it is installed on the strut (2) and is embedded in the headrest body (3), for motor vehicle headrest (92) It is characterized in that,
The dynamic damper (4) includes: installation component (6), has mounting portion (60) and the edge for being installed on the strut (2) Table carries on the back the opening portion (61) of direction perforation installation component (6) itself;Elastic component (7), by the peristoma of the opening portion (61) (610) it fixes complete cycle and is configured at the opening portion (61);And counterweight (80), it is embedded in the elastic component (7) and matches The opening portion (61) are placed in,
The installation component (6) has table side dividing body (6F) and is configured at the back side point of the back side of the table side dividing body (6F) Body (6R) is cut,
It is described by being clamped using the table side dividing body (6F) and the back side dividing body (6R) from table back direction two sides The complete cycle of elastic component (7), the elastic component (7) is fixed by the peristoma (610),
The table side dividing body (6F) has along the table side opening portion (61F) of table back direction perforation,
The back side dividing body (6R) has along the back side opening portion (61R) of table back direction perforation,
Pass through the peristoma (610R) of peristoma (610F) and the back side opening portion (61R) using the table side opening portion (61F) It clamps the elastic component (7), the complete cycle of the elastic component (7) is fixed by the peristoma (610),
It is embedded by being clamped using the table side dividing body (6F) and the back side dividing body (6R) from table back direction two sides There are the elastic component (7) and the strut (2) of the counterweight (80), the complete cycle of the elastic component (7) is by the peristoma (610) the fixed and mounting portion (60) is installed in the strut (2).
2. headrest (92) according to claim 1, wherein
Table back direction is the front-rear direction or left and right directions of the vehicle.
3. headrest (92) according to claim 1 or 2, wherein
The elastic component (7) has table side elastomer (7F) and is configured at the back side bullet of the back side of the table side elastomer (7F) Property body (7R),
It is described by being clamped using the table side elastomer (7F) and the back side elastomer (7R) from table back direction two sides Counterweight (80), the counterweight (80) are clipped on the boundary between the table side elastomer (7F) and the back side elastomer (7R) Face (f),
Between the counterweight (80), the table side elastomer (7F), the back side elastomer (7R), along the interface (f) gap (B1) is marked off.
4. headrest (92) according to claim 1, wherein
The strut (2) has a pair of of the leg (20) vertically extended and will be between the upper end of a pair of leg (20) The linking part (21) linked up,
The installation component (6) is clipped between a pair of leg (20), in a pair of leg (20) and the installation structure A pair of of slit portion (C1) to lower opening is marked off between part (6).
5. headrest (92) according to claim 1 or 2, wherein
The headrest (92) also have for limit the counterweight (80) the table carry on the back direction on displacement limiting unit (70,81, 82)。
6. headrest (92) according to claim 5, wherein
The limiting unit (70,81,82) is a pair of of coupling member (81), which is configured at the installation structure Part (6) and the table back direction two sides that the opening portion (61) is configured in a manner of across the opening portion (61).
7. headrest (92) according to claim 5, wherein
The limiting unit (70,81,82) is a pair of of film structural component (82), which covers from table back direction two sides Cover the elastic component (7).
8. headrest (92) according to claim 5, wherein
The headrest body (3) has the buffer component (31) of resin expanded system,
The limiting unit (70,81,82) is a pair of of Infiltration layer (70), which is by the buffer component (31) raw material be infiltrated in the elastic component (7) surface and the back side and formed.
9. a kind of seat (9), wherein
The seat (9) has headrest (92) of any of claims 1 or 2.
CN201610438555.3A 2015-06-19 2016-06-17 It rests the head on and has the seat of headrest Active CN106256599B (en)

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US20160368403A1 (en) 2016-12-22

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